|
发表于 2013-4-7 14:20:33
|
显示全部楼层
来自: 中国广东广州
hyc1754 发表于 2013-4-7 13:51 static/image/common/back.gif
! U/ ^: ?! d3 S" k* ~! @; k( X谢谢你的热心帮助!& I( B$ {5 V. i% j: o
标准里写的是1144而不是C-1144,我不确定他们是不是完全一样;8 |( I6 B9 R% i( K G" q; c4 y* n
关于机械性能,A370 ... ' D" i& g4 a4 M# j5 d+ T
前面C为 cold roll steel 这种钢除了切削性能很好外,力学性能要求不是很高
# W' G0 g- P7 U6 k* n" E' xApplications include cold drawn or finished bar, cold punched nuts, split rivets, machine screws, and wood screws. Post oil quenched hardness: 30 HRC surface, 27 HRC half-radius, 22 HRC center.8 i- J* D! ^( ]3 o, h( X) ]9 j
Density 7.87 g/cc
8 T w2 m, H% {9 N& JHardness, Brinell 192 192
- \2 O# i2 y3 C* bHardness, Knoop 214 214 Converted from Brinell hardness.
- @$ z5 Z6 j5 J+ g: kHardness, Rockwell B 91 91 Converted from Brinell hardness.
) W: J2 u& D4 KHardness, Rockwell C 11 11 Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.5 Z$ ^) k! P- G. e
Hardness, Vickers 201 201 Converted from Brinell hardness.
9 B1 y# ^6 G0 {. |Tensile Strength, Ultimate 650 MPa 94300 psi 8 ~( h! m5 } s; I% g- ]
Tensile Strength, Yield 425 MPa 61600 psi
: g' e5 B" A* E7 TElongation at Break 24 % 24 % . D. q" [) ?, }9 \# J
Reduction of Area 57.7 % 57.7 % ; S/ H7 q5 E3 A( H" D. A
Modulus of Elasticity 200 GPa 29000 ksi Typical for steel( [2 o8 P# X: D+ g0 l7 D
Bulk Modulus 140 GPa 20300 ksi Typical for steel.
, `: L0 S0 a- L" ]. x- LPoisson's Ratio 0.29 0.29 Typical For Steel . U2 Y! {8 r. Z' A9 l1 S; w
Izod Impact 43 J 31.7 ft-lb normalized at 900?C, 65 J annealed at 815?C, 53 J as rolled( g: X$ _, n: j2 I9 K# N& J' g
Shear Modulus 80 GPa 11600 ksi Typical for steel. |
评分
-
查看全部评分
|